KR0175469B1 - How to control the visibility of fill program variables - Google Patents

Abstract

The present invention relates to a method of controlling the visibility of CHILL program variables that occur during CHILL program debugging. The present invention relates to controlling the visibility of CHILL program variables to control the visibility of CHILL program variables. To provide visibility control method of CHILL variable that can be efficiently tracked and changed, read CHILL program variable and visibility control block from CHILL program for all variable information A first step of repeatedly analyzing the information and creating a visibility control block according to the analyzed information to register in the debugger data structure or register the declared variable in the corresponding block; Determining a start address and an end address of each of the created execution blocks, registering them in the corresponding blocks, and reconstructing the debugger internal data structure according to the association relationship between the blocks; And refer to the CHILL variable declared with the same name in another module, including the third step of controlling the visibility of the variables declared at debugging time in the program using the created debugger data structure and the address of the executing code. It is effective to prevent the error of searching for variables in advance, and to efficiently track and change the values and mode information of the desired variables.

Description

How to control the visibility of CHILL program variables

1 is a block diagram of hardware to which the present invention is applied.

2 is a flowchart of one embodiment of a method for controlling visibility of CHILL program variables according to the present invention.

3 is a detailed flowchart of an embodiment of a method for controlling the visibility of variables declared in a program using an internal data structure in a debugger according to the present invention.

* Explanation of symbols for main parts of the drawings

101: main memory board 102: central processing board

103: general purpose operating system 104: auxiliary storage device

105: input / output device 106: system bus

The present invention relates to a method of controlling the visibility of CHILL program variables that occur during CHILL program debugging.

There is a new need for controlling the visibility of CHILL program variables to debug CHILL programs.

Accordingly, an object of the present invention is to provide a method of controlling visibility of CHILL program variables that can efficiently track and change the values of CHILL program variables when debugging the CHILL program by controlling the visibility of CHILL program variables. have.

In order to achieve the above object, the present invention, in the visibility control method of the CHILL program variable applied to the visibility control device of the CHILL program variable, for all the variable information from the CHILL running program ( CHILL) Reads information about program variables and visibility control blocks, analyzes variable information, creates visibility control blocks according to the analyzed information, and registers them in the debugger data structure or registers declared variables in the corresponding blocks. Stage 1; Determining a start address and an end address of each of the created execution blocks, registering them in the corresponding blocks, and reconstructing the debugger internal data structure according to the association relationship between the blocks; And a third step of controlling the visibility of variables declared during debugging in the program by using the created debugger data structure and the address of the executing code.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention;

1 is a configuration diagram of hardware to which the present invention is applied, where 101 is a main memory board, 102 is a central processing board, 103 is a general-purpose operating system, 104 is an auxiliary memory device, 105 is an input / output device, 106 is a system bus. Represent each.

Referring to the functions of the blocks shown in the drawing, the main memory board 101 of the system is a board on which a CHILL executable file and a CHILL debugger including visibility control blocks and variable information are mounted, and a central processing board. Reference numeral 102 denotes a board for executing a file mounted on the main memory board 101.

The auxiliary memory device 104 is a device for storing files and data used in the system, and stores files and tools not mounted on the main memory board 101.

The input / output device 105 is a device for inputting / outputting the result of visibility control during debugging and all error messages generated during execution. The universal operating system 103 controls each of the boards and devices, and messages sent and received between each board and device are made through the system bus 106.

2 is a flowchart illustrating an embodiment of a method for controlling visibility of CHILL program variables according to the present invention.

First, after extracting and reading information on CHILL variable and visibility control block from CHILL execution program (201) and analyzing the variable information (202), it is determined whether the analyzed information is related to the visibility control block. Determination (203).

As a result of determination, in the case of information related to the visibility control block, a block structure for processing the visibility control block is created (204), and the created block structure is registered in the debugger data structure (206), and the analyzed information is stored in a variable or data mode. In the case of related information, the variable and data mode information are registered in the corresponding block.

Thereafter, it is determined whether the chill program variable information processing is completed (207), and the process is repeatedly performed until the chill program variable information processing is completed.

After the CHILL program variable information processing is completed, the start address and the end address of each created execution block are determined and registered in the corresponding block (208), and the debugger internal data structure is reconstructed according to the association between the blocks (208). 209) Control the visibility of the variables declared during debugging in the program using the created debugger data structure and the address of the executing code (210).

3 is a detailed flowchart of an embodiment of a method of controlling visibility of a variable declared in a program using an internal data structure of a debugger according to the present invention.

When a programmer executes an instruction that references the value or data mode of a variable declared in any program source line, the CHILL debugger verifies the execution address of the currently executing executable code (301), The block containing the address is retrieved (302).

Search for the variable to be referred to in the searched block (303), if the search is successful (304), display the value or data mode information of the searched variable according to the type of debugging command (305), and if the search fails ( 304 It is checked whether the upper block of the block exists (306).

As a result of the check, if the upper block exists, the upper block is changed to the corresponding block (307), and the variable to be referred to is searched in the upper block (303). If the upper block does not exist, a message indicating that the corresponding variable does not exist is terminated (308).

As described above, the present invention controls visibility of a variable declared in a CHILL program module, thereby preventing a search error of a variable that occurs when referring to a CHILL variable declared with the same name in another module. In addition, there is an effect that can efficiently track and change the value and mode information of the desired variable.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

Claims (3)

In the visibility control method of a CHILL program variable, which is applied to a visibility control device of a CHILL program variable, the CHILL program variable and a visibility control block for the CHILL program are executed for all variable information. A first step of repeating the process of reading the information and analyzing the variable information to create a visibility control block according to the analyzed information and registering it in the debugger data structure or registering the declared variable in the corresponding block; Determining a start address and an end address of each of the created execution blocks, registering them in the corresponding blocks, and reconstructing the debugger internal data structure according to the association relationship between the blocks; And a third step of controlling visibility of variables declared at debugging time in the program by using the created debugger data structure and the address of execution code being executed. According to claim 1, wherein the first step, after extracting and reading the information on the CHILL program variable and the visibility control block from the CHILL execution program, the variable information analyzed by analyzing the variable information is the visibility control block Determining whether the information is related to the fourth step; A fifth step of creating a block structure for processing the visibility control block and registering the created block structure in the debugger data structure if the analyzed variable government is information related to the visibility control block as a result of the determination in the fourth step; And a sixth step of registering the variable and data mode information in a corresponding block when the analyzed variable information is information related to the variable or data mode. And a seventh step of repeatedly performing the fourth step with respect to all the variable information. The method of claim 1 or 2, wherein the third step comprises: an eighth step of searching for a block including the address of the confirmed execution code by checking the execution address of the currently executed execution code; A ninth step of determining whether the search is successful by searching for a variable to be referred to in the found block; A tenth step of displaying a value of a found variable or data mode information according to the type of debugging command if the search is successful as a result of the determination in the ninth step; As a result of the determination of the ninth step, if the search fails, the controller determines whether the upper block of the block exists. If the upper block exists, the upper block is changed to the corresponding block, and then repeated from the ninth step. If it does not exist, the visibility control method of the CHILL program variable comprising the eleventh step of outputting a message indicating that the variable does not exist.